Home / 138,708,002.88-208,045,470.20-36,480,012.12

Finding the Fourth Proportional to 138,708,002.88, 208,045,470.20 and 36,480,012.12

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Solution

The fourth proportional to 138,708,002.88, 208,045,470.20 and 36,480,012.12 is: 54,715,669.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,708,002.88 : 208,045,470.20 = 36,480,012.12 : x
  2. Step 2: Convert to fraction form
    138,708,002.88/208,045,470.20 = 36,480,012.12/x
  3. Step 3: Cross multiply
    138,708,002.88x = 208,045,470.20 × 36,480,012.12
  4. Step 4: Simplify right side
    138,708,002.88x = 7,589,501,274,224,698
  5. Step 5: Solve for x
    x = 7,589,501,274,224,698/138,708,002.88
  6. Step 6: Final answer
    x = 54,715,669.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.